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09-26-2011, 04:06 PM | #1 |
Drives: Yaris 1.33 litre 2011 Join Date: Dec 2009
Location: Wigan
Posts: 124
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spark plug data
Does anyone know the reach, hexagon size and tightening torque for the iridium plugs fitted to the new yaris? Denso ref. SC20HR11.
NGK ref ILKAR7B11. I have searched the relevant websites but these would seem to be a new plug and the websites are not up to date. Many thanks to anyone who can supply the information. Regards Geoff Peace. |
09-26-2011, 04:37 PM | #2 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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16mm, 183 kgcm (13 ft lb)
That is actually the same as for all of the Yaris engines (1.0, 1.3, 1.5, 1.8).
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09-27-2011, 04:05 PM | #3 |
Drives: 2007 Yaris Join Date: Sep 2011
Location: USA
Posts: 8
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How often do the iridium spark plugs need to be replaced? Is it 120,000 miles? OP, are you replacing yours?
Thanks! |
09-28-2011, 01:07 PM | #4 |
Drives: Yaris 1.33 litre 2011 Join Date: Dec 2009
Location: Wigan
Posts: 124
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Thankyou for your replies everyone. Book says replace at 60,000 miles which means 30,000 miles for me. I have since found out from NGK plugs that they are 14mm. hexagon 15-20Nm torque and 26.5mm. reach. If plugs are not removed for a long time the intermetallic reaction means they can be the very devil to remove and have been known to snap. With such a long reach and only M8 thread I intend to remove them say every two years and coat the threads with copper grease.
Regards Geoff Peace. |
09-28-2011, 01:36 PM | #5 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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Ahh, you have the new 1NR-FE in your Yaris, not the 2NZ-FE or 2ZE-FE.
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09-29-2011, 02:14 PM | #6 |
Drives: Yaris 1.33 litre 2011 Join Date: Dec 2009
Location: Wigan
Posts: 124
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Yes it has iridium plugs and I was being very careful not to overtighten them.
Regards Geoff Peace |
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